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31. 发明授权

US06921213B2 Adaptable optical subassembly module for different optical fiber connection interfaces 有权
标题翻译：适用于不同光纤连接接口的光学子组件模块
公开(公告)号：US06921213B2
公开(公告)日：2005-07-26
申请号：US10426204
申请日：2003-04-29
申请人： Paul Rosenberg , Martin Wisecarver , Ramesh Sundaram , Dean Haritos , Todd L. Gustavson
发明人： Paul Rosenberg , Martin Wisecarver , Ramesh Sundaram , Dean Haritos , Todd L. Gustavson
IPC分类号： G02B6/42
CPC分类号： G02B6/4201 , G02B6/424 , G02B6/4261 , G02B6/4267 , G02B6/4277 , G02B6/4292
摘要： A modular TOSA that is compatible with multiple optical fiber connector standards and a method of making the TOSA are presented. With the invention, a modular TOSA can be made compatible with different connector standards by switching the nose assembly while keeping the port assembly design and the adapter assembly design constant. The nose assembly that is compatible with the desired connector standard is selected from a group of nose assemblies, which are designed to be coupled with the same port assembly but having different connector standards.
摘要翻译：提供了与多个光纤连接器标准兼容的模块化TOSA和一种制造TOSA的方法。利用本发明，通过在保持端口组件设计和适配器组件设计恒定的同时切换鼻部组件，可以使模块化TOSA与不同的连接器标准兼容。与期望的连接器标准兼容的鼻部组件选自一组鼻部组件，其被设计成与相同的端口组件耦合但具有不同的连接器标准。

32. 发明授权

US06899456B2 Glide head for asperity detection 失效
标题翻译：滑翔头用于粗糙度检测
公开(公告)号：US06899456B2
公开(公告)日：2005-05-31
申请号：US09176580
申请日：1998-10-21
申请人： Ramesh Sundaram , Wei H. Yao
发明人： Ramesh Sundaram , Wei H. Yao
IPC分类号： G01N25/72 , G11B5/00 , G11B5/012 , G11B5/60 , G11B23/50 , G11B33/10 , G11B5/127 , G01B5/207 , G01N25/00 , G11B5/40
CPC分类号： G11B33/10 , G01N25/72 , G11B5/012 , G11B5/6076 , G11B23/505 , G11B2005/001 , Y10T29/49041 , Y10T29/49048
摘要： Glide heads for the detection of asperities on a storage disc have a thermal transducer oriented along the air bearing surface. The thermal transducer generally is in electrical contact with a circuit to measure the electrical resistance of the thermal transducer. Preferred methods of depositing the thermal transducer involve the deposition of the thermal transducer on the smooth surface of a wafer prior to the slicing of individual sliders.
摘要翻译：用于检测存储盘上的凹凸的滑动头具有沿空气轴承表面定向的热传感器。热转换器通常与电路电接触以测量热传感器的电阻。沉积热变换器的优选方法包括在各个滑块的切片之前将热变换器沉积在晶片的光滑表面上。

33. 发明授权

US06891698B2 Wafer having surface contoured to form air bearing surfaces of a plurality of glide heads 失效
标题翻译：具有表面轮廓以形成多个滑动头的空气支承表面的晶片
公开(公告)号：US06891698B2
公开(公告)日：2005-05-10
申请号：US10015045
申请日：2001-12-11
申请人： Ramesh Sundaram , Wei Yao
发明人： Ramesh Sundaram , Wei Yao
IPC分类号： G11B5/48 , G11B5/82 , G11B21/00 , G01B21/30
CPC分类号： G11B5/488 , G11B5/4886 , G11B5/82 , Y10T29/49041 , Y10T29/49048
摘要： An improved glide head has an air bearing surface with a flatness of less than about 1 μinch. The air bearing surfaces are formed from the very smooth and flat surface of a wafer, preferably prior to slicing the glide heads from the wafer. Thus, a wafer is formed having a flat surface with a plurality of air bearing surface contoured onto the surface. To form a glide head, a transducer can be mounted on the air bearing surface or the surface opposite the air bearing surface, preferably at the wafer level before slicing.
摘要翻译：改进的滑动头具有平坦度小于约1μinch的空气轴承表面。空气轴承表面由晶片的非常光滑和平坦的表面形成，优选地在将滑动头从晶片切片之前形成。因此，形成具有平坦表面的晶片，多个空气轴承表面在表面上成像。为了形成滑动头，换能器可以在切片之前安装在空气轴承表面或与空气轴承表面相对的表面上，优选地安装在晶片级。

34. 发明授权

US06580572B1 Combination glide test/burnishing head and head suspension 失效
标题翻译：组合滑行测试/抛光头和头悬挂
公开(公告)号：US06580572B1
公开(公告)日：2003-06-17
申请号：US09737388
申请日：2000-12-14
申请人： Wei Hsin Yao , Ramesh Sundaram , David Shiao-Min Kuo
发明人： Wei Hsin Yao , Ramesh Sundaram , David Shiao-Min Kuo
IPC分类号： G11B502
CPC分类号： G11B5/6005 , G11B5/3169 , G11B5/455 , G11B27/36 , G11B2220/20
摘要： A combination glide test/burnishing head can be utilized in a glide test/burnishing system. The combination glide test/burnishing head includes two piezo-electric elements, which can be utilized in a passive mode as sensors for detecting contacts between the glide test/burnishing head and asperities on the surface of a magnetic recording disc. Contact between the glide test/burnishing head and disc asperities results in generation of a defect detection signal, which can be utilized by associated test logic to define the location of the detected asperities on the disc surface. The piezo-electric elements of the glide test/burnishing head can also be utilized in an active mode to cause yaw variation in the flight attitude of the glide test/burnishing head, in turn causing a burnishing pad on the glide test/burnishing head to be moved radially into contact with a detected disc asperity. Once an active, burnishing operation has been performed, the piezo-electric elements of the glide test/burnishing head are returned to passive mode, to determine if the burnishing operation was successful in removing the asperity on the disc surface. Combining the glide test and burnishing functions in a common head assembly allows the glide test and burnishing functions to be performed using a single actuator for the glide test/burnishing head, simplifying and reducing the cost of a glide test/burnishing system.
摘要翻译：组合滑行试验/抛光头可用于滑移试验/抛光系统。组合滑行测试/抛光头包括两个压电元件，其可以被动模式用作用于检测滑动测试/抛光头与磁记录盘表面上的凹凸之间的接触的传感器。滑动测试/抛光头和盘形凹凸之间的接触导致产生缺陷检测信号，该缺陷检测信号可由相关联的测试逻辑用来定义检测到的凹凸在盘表面上的位置。滑行试验/抛光头的压电元件也可以以主动模式使用，以使滑行试验/抛光头的飞行姿态产生偏航变化，从而在滑动试验/抛光头上造成抛光垫径向移动以与检测到的圆盘凹凸接触。一旦执行了主动的抛光操作，滑动测试/抛光头的压电元件返回到被动模式，以确定抛光操作是否成功地去除了盘表面上的凹凸。将滑动试验和抛光功能结合在共同的头部组件中，允许使用用于滑动试验/抛光头的单个致动器来执行滑行试验和抛光功能，从而简化和降低滑动试验/抛光系统的成本。

35. 发明授权

US06272909B1 Glide height testing using a glide head apparatus with a piezoelectric actuator 失效
标题翻译：使用具有压电致动器的滑动头装置进行滑行高度测试
公开(公告)号：US06272909B1
公开(公告)日：2001-08-14
申请号：US09612790
申请日：2000-07-10
申请人： Wei H. Yao , Ramesh Sundaram
发明人： Wei H. Yao , Ramesh Sundaram
IPC分类号： G01B560
CPC分类号： G11B33/10 , G01N19/02 , G11B5/82
摘要： A glide head apparatus for testing surface characteristics of a disc includes a gimbal, a slider and an actuator including a piezoelectric material disposed between the gimbal and the slider. A voltage applied across the piezoelectric material is controllable to cause the piezoelectric material to expand or contract depending on the applied voltage so as to vary the fly height between the slider and a disc under test. The fly height can be varied without substantially varying the linear velocity of the disc under test. Methods of testing surface characteristics of a disc using the glide head apparatus also are disclosed.
摘要翻译：用于测试盘的表面特性的滑行头装置包括万向节，滑块和包括布置在万向节和滑块之间的压电材料的致动器。施加在压电材料上的电压是可控的，以使压电材料根据所施加的电压而膨胀或收缩，以便改变滑块和待测圆盘之间的飞行高度。飞行高度可以变化，而基本上不改变被测圆盘的线速度。还公开了使用滑动头装置测试盘的表面特性的方法。

36. 发明授权

US6112582A Glide head apparatus for testing recording media 失效
标题翻译：用于测试记录媒体的滑道头装置
公开(公告)号：US6112582A
公开(公告)日：2000-09-05
申请号：US252889
申请日：1999-02-18
申请人： Wei H. Yao , Ramesh Sundaram
发明人： Wei H. Yao , Ramesh Sundaram
IPC分类号： G11B5/60 , G11B5/82 , G11B33/10 , G01B5/28
CPC分类号： G11B5/6005 , G11B5/82 , G11B33/10
摘要： A glide head that can be coupled to a mounting base via a load arm includes a gimbal. A slider is coupled to the gimbal and includes an air bearing surface having a downward protrusion. The distance between the protrusion and a disc under test is substantially insensitive to changes in a height measured from a bottom of the mounting base to an upper surface of the disc. Furthermore, the protrusion can have a distal end extending downward such that a distance from the distal end to the disc under test is less than a distance from every other surface of the slider to the disc during operation of the glide head. The glide head can have a fly height that is substantially constant. Therefore, the glide head can provide more accurate and more uniform detection of outwardly projecting defects on the surface of the disc.
摘要翻译：可以通过负载臂联接到安装基座的滑行头包括万向节。滑动器联接到万向架并且包括具有向下突出部的空气支承表面。突起与受试盘之间的距离对于从安装基座的底部到盘的上表面测量的高度的变化基本上不敏感。此外，突起可以具有向下延伸的远端，使得在滑动头的操作期间，从远端到被测盘的距离小于从滑块的每个其他表面到盘的距离。滑行头可以具有基本恒定的飞行高度。因此，滑动头可以提供在盘的表面上向外突出的缺陷的更精确和更均匀的检测。

37. 发明授权

US5423116A Method of manufacturing a multi-track longitudinal, metal-in-gap head 失效
标题翻译：制造多轨纵向金属间隙头的方法
公开(公告)号：US5423116A
公开(公告)日：1995-06-13
申请号：US94689
申请日：1993-07-21
申请人： Ramesh Sundaram
发明人： Ramesh Sundaram
IPC分类号： G11B5/187 , G11B5/29 , G11B5/39 , G11B5/48
CPC分类号： G11B5/39 , G11B5/1878 , G11B5/295 , G11B5/4893 , Y10T29/49037 , Y10T29/49048 , Y10T29/49053
摘要： A multi-track longitudinal magnetic tape head capable of writing data to high-coercivity magnetic tapes and a method for making the same. The multi-track, longitudinal magnetic tape head according to the present invention comprises a plurality of write elements and read elements. The write elements comprise a write pole separated from a substrate by a write gap. The write poles each comprise a block of magnetic material having a planar gap surface and a convex top surface. A high B.sub.s composition is deposited on an etched portion of the magnetic material of each write pole at the gap surface. The gap surface is processed so that it is a contiguous planar surface comprising the high B.sub.s, composition, insulating material and the magnetic material.
摘要翻译：一种能够将数据写入高矫顽力磁带的多轨纵向磁带头及其制造方法。根据本发明的多轨纵向磁带头包括多个写入元件和读取元件。写入元件包括通过写入间隙与衬底分离的写入极。写磁极各自包括具有平面间隙表面和凸顶表面的磁性材料块。在间隙表面上，每个写极的磁性材料的蚀刻部分上沉积高Bs组成。处理间隙表面，使其为包括高Bs，组成，绝缘材料和磁性材料的邻接平面。

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